Thai Postnuptial Agreement — Restructure Marital Property After the Wedding

Inheritance, probate & family pension reference — 39 answers

Compiled from the Civil & Commercial Code Book VI (succession, §1629 and §1655-1672), the Inheritance Tax Act B.E. 2558, Revenue Code §42(27)(28) and §48(4), Land Code §93, Condominium Act §19, the Child Adoption Act B.E. 2522 with the Hague 1993 Convention, and the Social Security Act B.E. 2533, as cited on each service page. Court fees, publication costs and government charges are official rates passed through at cost; stated durations are estimates that depend on court and registry queues.

• Q16316. What is Thai Postnuptial Agreement — Restructure Marital Property After the Wedding?

  A postnuptial isn't a 'late prenup' — it's an inter-spouse contract to re-classify specific assets out of the marital estate after the wedding. Common triggers: (a) upcoming inheritance, (b) forming a BOI/holding company, (c) LTR-visa filing that requires US$1M in named assets, (d) relocating to a community-property state (e.g. California). NYC drafts an inter-partes agreement — binding on the couple but NOT on third parties unless re-registered at the Land Department or DBD. quoted after document review; 7–10 days.

• Q16317. What does Thai Postnuptial Agreement — Restructure Marital Property After the Wedding cost and how long does it take?

  with fees quoted after document review · typical turnaround 7–10 business days. Government fees are official rates passed through at cost and timelines depend on Amphoe, court and agency queues.

• Q16318. Does a postnup bind third parties?

  Not automatically (CCC §1476/1) — creditors can still reach marital assets unless title is actually transferred at the Land Department (property) or DBD (shares).

• Q16319. How does a postnup differ from a prenup?

  A prenup registered with the marriage binds third parties (erga omnes). A postnup binds the spouses only, unless followed by an actual transfer of title.

• Q16320. Is a postnup accepted for LTR-visa asset proof?

  Yes — BOI accepts a notarised postnup + bank statements + asset schedule as evidence of the US$1M in personal assets required for the LTR Wealthy Global Citizen track.

• Q16321. Do we have to disclose it to the Revenue Department?

  Not by default. If actual transfers happen under it, file PND.90/91 for the year — inter-spouse gifts up to THB 20M/yr are exempt under §42(27) of the Revenue Code.

• Q16322. Can one spouse revoke it?

  The disadvantaged spouse may petition to void it within 1 year of divorce/marriage end (§1469). Signing before a lawyer with notarial services materially reduces the 'unconscionability' defence.

• Q16323. How many witnesses are needed?

  Two or more plus a notarial-services attorney to certify the absence of duress or mistake — this significantly increases evidentiary weight.

• Q16324. How does a postnup interact with the 49% condo quota?

  Critically. A Thai-foreign couple buying a condo needs a postnup declaring the condo was 'bought with the foreign spouse's separate funds' — that lets them take title in the foreign 49% quota rather than a 30-year lease workaround.

• Q16325. Is a foreign postnup enforceable in Thailand?

  Yes, after Apostille (from 28 Feb 2027) + MFA-certified translation + a Thai-court recognition petition under §4 of the Conflict of Laws Act.

• Q16326. Which authorities back Thai Postnuptial Agreement — Restructure Marital Property After the Wedding?

  Cited sources: https://www.krisdika.go.th/librarian/get?sysid=443287&ext=pdf · https://www.bot.or.th/ · https://www.rd.go.th/ · https://www.hcch.net/en/instruments/conventions/full-text/?cid=69

• Q966450. What are the end-to-end steps for postnuptial agreement?

  We start with a document and fact review, prepare and verify the file, submit to the courts and the relevant Land Office, follow up on any queries raised by officials, and hand over the completed result with a full copy set. For postnuptial agreement a case manager tracks every stage and reports status. Call +66 83-249-4999 · LINE @NYC168 · Contact@nyclegal.co.th

• Q966452. Which documents are required for postnuptial agreement?

  The baseline set is the applicant's ID or passport, the original documents relating to postnuptial agreement, proof of connection (house registration, company affidavit or the underlying contract) and a power of attorney if a representative attends. The exact list follows the courts and the relevant Land Office requirements on the filing date; we send a case-specific checklist before your appointment.

• Q966454. How long does postnuptial agreement take?

  Timing depends on the courts and the relevant Land Office queue, how complete your file is, and public holidays. Our own preparation usually takes a few business days; the official stage is an estimate that can shift. We give you a realistic postnuptial agreement timeline before starting and update you as it progresses.

• Q966456. What costs are involved in postnuptial agreement and how are they calculated?

  There are two components: official government fees passed through at the published rate, and our professional fee, which depends on scope, document volume and urgency of postnuptial agreement. Fees are quoted case by case based on complexity and document volume — ask our team before work starts. You always receive a written breakdown before work begins — no hidden charges.

• Q966458. Can postnuptial agreement be handled if I live upcountry or overseas?

  Yes. Send photos of your documents via LINE for a feasibility check, then we proceed under a power of attorney, or you sign at a Royal Thai Embassy/Consulate where you live and courier the originals back. For postnuptial agreement we map out the fastest and safest option before you commit.

• Q966460. What are the most common mistakes in postnuptial agreement and how do we prevent them?

  The usual causes of rejection are name spellings that differ between documents, documents that expire before the filing date, uncertified copies, and translations that do not match the original. the courts and the relevant Land Office returns files for exactly these reasons, so we cross-check names, dates and seals across every page before submitting postnuptial agreement.

• Q966462. Which laws or regulations govern postnuptial agreement?

  The framework is set by Book VI of the Civil and Commercial Code and the Inheritance Tax Act B.E. 2558, together with the regulations and notifications issued by the courts and the relevant Land Office, which are revised from time to time. Before advising on postnuptial agreement we verify the version in force on the filing date and rely on official sources rather than second-hand summaries.

• Q966464. What happens if postnuptial agreement is rejected or returned for correction?

  First we obtain the written reason from the courts and the relevant Land Office, then separate formal defects (fixable and quickly refiled) from substantive or eligibility issues (which need a change of approach). Where the error is ours, we redo postnuptial agreement at no extra professional fee and coordinate until the matter is resolved.

• Q966466. Who is postnuptial agreement for, and what are the eligibility conditions?

  It suits anyone who must present the result of postnuptial agreement to a government body, bank, educational institution or overseas counterparty. Applicant eligibility and supporting documents follow the courts and the relevant Land Office rules; some cases require the document holder in person or a properly executed power of attorney. We screen eligibility free of charge before accepting the case.

• Q966468. How long does the result of postnuptial agreement stay valid?

  Certified documents rarely carry an expiry date themselves, but most receiving authorities require issuance within 3–6 months of submission, and some are stricter. Check the destination's rule before starting postnuptial agreement so nothing has to be redone; we plan the sequence around your filing deadline.

• Q966470. Does postnuptial agreement also need an English or target-language translation?

  If the receiving body is overseas, a certified translation is normally required, and many countries insist on their own official language rather than English. We confirm the destination rule first, then produce a translation aligned with postnuptial agreement and certify it in the same workflow to avoid extra rounds.

• Q966472. Should I handle postnuptial agreement myself or use a service provider?

  Doing it yourself saves the professional fee but leaves you carrying the risk on document format, queueing and travel time, plus shifting the courts and the relevant Land Office practice. A provider reduces rejection loops and gives you someone accountable for follow-up. For postnuptial agreement we are happy to give initial guidance even if you proceed on your own.

• Q966474. Is there an express option for postnuptial agreement?

  We can prioritise our own preparation subject to capacity, but any stage controlled by the courts and the relevant Land Office follows official procedure and cannot be guaranteed to a fixed date. We tell you plainly what the fastest realistic postnuptial agreement window is and offer alternatives if your deadline is too tight.

• Q966476. How is my data protected when you handle postnuptial agreement?

  We process personal data under Thailand's Personal Data Protection Act B.E. 2562 (PDPA), use it only to carry out postnuptial agreement as instructed, restrict access to the assigned team, and return or destroy originals on your instruction. You may exercise access or deletion rights at any time.

• Q966478. What happens after postnuptial agreement is completed?

  Check names, dates and seals as soon as you receive the result of postnuptial agreement, keep at least one digital copy, and submit to the receiving authority within its validity window. If the destination requires further legalisation — for example the Department of Consular Affairs or an embassy — we continue the chain in the same engagement.

• Q966480. What risks should I know before starting postnuptial agreement?

  The main risks are destination rules changing mid-process, historic documents that no longer match current facts, and deadlines so tight that no correction round is left. We confirm requirements with the courts and the relevant Land Office or the receiving body before filing postnuptial agreement and build correction time into the plan.